Journal box for mine-car wheels



s. BARKS ET AL JOURNAL BOX FOR MINE CAR WHEELS File'gi April 17, 1922Patented Dec, 35(0), 1924, uurren stares PATENT errata,

FRANK S. BABES AND GEORGE E. BELL, JR, OF ST. LOUIS, MISSOTURE,ASSlEG-NORS TO LmCOlLN STEEL AND FORGE COMPANY, O15 ST. LOUIS, MISSOURI,A CORPORATION Oil? HIISSOURI.

JOURNAL BOX FOR MINE-OAR WVHEJELS.

applicatioii filed April 17, 1922. Serial No. 554,173.

To all whom it may concern: sloughed from the lubricated surfaces and Beit known that we, FRANK S. Barns cause considerable wear. 55

and GEORGE l3. BELL, Jn, citizens cit the lln the drawings, 1 indicatesa mine car United States, residing at city of St. Louis," wheel and 2the axle thereof, said wheel 5 State of Missouri, have invented acertain being held on the axle by means of a cotter new and usefulImprovement in Journal pin 3. 4c indicates the journal box as an Boxesfor Mine-Car Wheels, of which the entirety, which, as shown in Figures 1to 3, to

following is a full, clear, and exact tie is designed to be bored tor alining 5, which scription, such as will enable others skilled liningcooperates with anti-friction rollers 1 in the art to which itappertains to make 6 bearing directly upon the axle. 7 indiand use thesame, reference being had to the cates a washer bearing against aninwardly accompanying drawings, forming part of extending flange 4 ofthe box and which 65 thi ifi ti i whi h, washer is preferably scallopedor recessed Figure l is a horizontal sectional view around its outeredges to permit the passage through our improved journal box showing ofthe lubricant therebetween,

it l ti to a i ar wh l, I indicates the cage of the roller bearing Fi r2 i a ti l tional i w wlnch is held in position against the washer-filothrough the outer end of the journal box. 7 by means of an end ring 9,said end ring Figure 3 is a front elevational view oi being preferablyheld in place by a bent said journal box, and wire 10 seated in thegroove lin the end- Figure l is a modified form'ol journal of the ournalbox, The end ring 9, as b shown in Figure 2, has an undercut portion 75Our invention relates to a new and useful in its inner face whichprovides a chamber improvement in journal boxes for mine car 9* at theend of the roller bearing frame 2 wheels, the object being to constructthe 8, the overhanging or inwardly extending box in such a manner thatit can be charged outer marginal flange of the end ring 9 with lubricantand retain said lubricant engagingsaid frame member 8 to hold the so fora relatively long period of time whereby roller bearing in position. Theperiphery the relatively moving surfaces will be prms of this end ring 9is preferably formed with o ti ally self-lubricated, a semicircularrecess in which is arranged Due to the character Oil service to whichhair-felt packing ll, the inner edge of the the mine cars are subjected,surfaces of the ring, While extending towards, permits the ca journalboxes which constitute the bearings free movement of the axle within thering. for the axle are liable'to become worn in a By constructingthe-end ring 9 in the manhort space of time on a o t; of the her abovedescribed and providing chamber presence of dirt and grit, and theseworn 9 entirely around the roller frame member surfaces permit leakageof the lubricant 8, we have found that lubricant pressed to from theboxes. Ordinarily these journal into said chamber by the action or therollboxes have to be recharged with a lubricant ers, when the axle isrotated, will tend to 40 every month or so, orwhenever they run L pileup or be thrown outwardly as indicated dry and it is one of the obje tof o r at 12, in Figure 2, this piling continuing invention to providemeans whereby the until the lubricant accumulates to such an atlubricant is adorded an easy and unobextent that it Will either Fun r 5be r t d th wh r by ,it. ay return th thrown out Oil the bottom of thebox within interior of the box and not be forced out the charmbtlrllm'med y fi end g and of the box, as we have observed in other thus beheld in the boxso that said lubricant t s of journal boxes now on themark t, can again serve in lubricating the rollers, too It has beenproposed to seal journal boxes Any lubricant which leaks through thering for mine cars and while this tends to conbetween the end ring andthe axle outside fine the lubricant within the box and exot the box willlikewise tend to build up clude grit and dust from the exterior, yet,under the action of the centrifugal force, as such a sealed box willalso hold the liner indicated at 13, and being exposed to air W5particles of metal which are constantly and dirt, this outside ring oflubricant l0@-,

comes relatively hard so that in fact it will in a short time form a damor obstruction tending to prevent the further escape of lubricant to theexterior.

The outer end of our improved journal box is formed with a shroudportion 4 spaced from the partition wall 4 before referred to, so as toform an elongated surface parallel with the inner end of the hub of thewheel and slightly spaced therefrom," the inner face of said shroudbeing undercut to provide an enlarged reservoir 14 for the lubricant,which reservoir or chamber is located within the shroud and radiallybeyond, and preferably entirely around the wheel opposing surface. Thischamber is closed by the hub of the wheel which may extend slightlythereinto, as shown in Figure 1, there being a washer 15 arranged in thechamber and bearing against the.,outer face of the partition wall 4 totake theend thrusts of the wheel hub. 16 indicates a duct or passagethreaded at its outer end to receive a. plug 17 against the inner face'of which is normally seated a ball valve 18, said ball valve being heldoutwardly in position against the seat by means of a spring 19. By thisarrangement, when the lubricating gun, such as indicated at 20, is usedto charge the journal box with a lubricant, the ball valve may bereadily unseated inwardly by the nozzle of the gun and grease injectedinto the journal box.

In operation, the lateral movement of the wheel and axle causes the hubwhich forms a. wall of the chamber M to produce a pulsating pressure onthe lubricant in chamber 14, forcing said lubricant to enter into thevarious communicating passages leading to the different surfaces to belubricated. Some pressure is also exerted to force lubricant into therestricted space between the wheel hub and the opposing shroud flange.

At the outer end of the passage between these opposing faces the dustalways present in service combines with the grease being extruded toform a seal which effectively prevents rearward passage of the dust to IThe length of the pets. sage and the slight width thereof prevents unduepassage of lubricant therethro-ugh. The lateral projection formed toaccommodate the duct 16 is substantially duplicated by a solidprojection 21 on the op-t posite side of the journal box, these twoprojections constituting stops for co-operat-\ ing with the outersurfaces of the pedestal jaws or with the frame parts of the mine cartruck frame which are provided to re-- ceive the journal box.

Another feature of our invention which we deem. novel is theconstruction of the top bearing of the journal box which here- 'toforehas been constructed on an arc ofacircle, whereby a ournal box Wlll haveswivelling .or rocking contact with the frame part tamping the sand inthe mould around the pattern where the bearing surface is formed from asingle radius, sand packed more tightly on one side or at one point,would produce irregularities in the casting tending to displace theintended point of contact of the journal box with respect to the framemember either to one side or the other. By providing a protuberance de-"scribed from a circle of comparatively small radius, we are able tolocate the bearing point of the journal box as predetermined and at thesame time preserve the strength of the box and secure the benefits ofthe trussed bearing. v

In Figure 4, we have shown a modification of our invention in which thejournal box 22 is in the form of an elongated bearing with an oilchamber 22 in its bottom. There are no roller bearings in this type ofjournal box, but we have shown the use of our overhanging shroudindicated here at 23, the function of this shroud being the same as thatheretofore described with respect to shroud 4.

lVhat we claim is:

1. In a journal box, a main bearingfor an axle, and a shroud adapted tocooperate with a wheel hub to form an elongated packjournal, box, weproduce ing surface, said shroud being undercut on 1ts inner face toprovide an enlarged lubricant reservoir around the axle and hub andbetween the axle bearing and the outer end a of said shroud. I

2-. In combination, an axle, a wheel having a projecting hub, a journalbox, a main bearing in said journal box,-a shroud 'on said box adaptedto cooperatewith said hub to form an elongated packing surface, saidshroud being undercut on its inner face to projecting into said box withexterior periphery slightly spaced the inner periphery of said flange dextending parallel therewith for a subs al distance to form a restrictedelongated oricant passage between said hub and in a journal box, atition wa ear one end of the cox, an extensicn on se wall projectingrally therefrom, urn flange on said extension parallel w spaced the bodythe to form therewith an enlarged lubricant servoir and adapted tocooperate with the hub of a wheel to form an elongated lubricantcontacting surface.

5. In a journal box, a roller bearing, a sleeve therefor, a box wall,the inner surface of which forms a support for said sleeve throughoutits length and the upper surface of which inclines upwardly from eachend toward the middle of the bearing, and a restricted pedestal or framebearing for forming a predetermined line contact with a pedestal orframe at the highest portion of said upper surface.

6. In a journal box, a roller bearing containing recess, and a partitionwall at the outer end of said recess, a horizontal projection on saidwall spaced from the axle bore and having an inwardly extending flangecooperating with said projection to (Fa Q2.)

a lubricant reservoir outside of said wall, and a passage through saidwall to said roller bea g recess,

'nation, an axle, a journal boa, roller bearing containing recess, wallat the outer end of said relieving" a horizontal projection extendioutwardly the wall and spaced from t e axle and provided with aninwardly ext-airing iiange adjacent to the axle and cooperati with saidwall to form a lubr cant reservoir outside of the wall, a wheel mountedon said axle and having a hub, the periphery of which extends parallelwith and inside oi said flange and terms therewith a restricted passagebetween them, said reservoir being open to said passage and to said axleand wheel contact.

8. The combination of the main portion of a journal box, a shroud havingan oil chamber, and a communication between the shroud oil chamber andthe chamber in the box, there being an inlet for the lubricant leadinginto said shroud chamber whereby the overflow from said'shroud chamberwill enterv the chamber in the the box.

In testimony whereof we hereunto aiiix our signatures this 10th day ofApril, 1922.

FRANK S. BARKS. GEORGE B. BELL, J R.

main portion of

